baber/WOPTO huggingface dataset:
Patent GB-970261-A (GB)
Title: Apparatus for controlling the application of heat
IPC: B29C51/42
Filed: 1962-06-12
Abstract: 970,261. Moulding sheet material. MONSANTO CO. June 12, 1962 [June 12, 1961], No. 22529/62. Heading B5A. [Also in Division G1] An apparatus for applying a controlled amount of heat to fabrics or sheet materials contains a bead thermistor which is mounted in a reflector such that the thermistor is in the plane of the fabric and is connected in a suitable circuit, e.g. a bridge circuit, such that the thermistor can cause the heat supply to be cut off when a predetermined temperature has been reached. The fabric to be heated is held in a frame between arms 12, 13, Fig. 1, controlled by compressed air from a source 19 and operated by a controller 60. One corner of the fabric is manually cut away to expose the heat sensing element 55. In operation the cut fabric is placed in the frames and the controller 60 causes compressed air to close the frames via cylinder 17 and cool the thermistor via nozzle 62. The cooling air stream is then stopped and the movable infra-red heater 24 is moved by piston 36 until it is above the fabric 16. The fabric is heated until the thermistor has reached a predetermined temperature. The controller causes the heater to be retracted to its ineffective position over the heat shield 32 and the mould halves 44, 45 are closed by pistons 46, 47 to form the moulded article.
Patent GB-239862-A (GB)
Title: Improvements in and relating to brakes
IPC: F16D55/36
Filed: 1925-09-10
Abstract: 239,862. British Thomson-Houston Co., Ltd., (Assignees of Libby, S. H.). Sept. 10, 1924, [Convention date]. Disc; electric and magnetic; energy-absorbing elements.-The rotary elements of a multipledisc brake each comprise a pair of plates secured together by pins and spaced apart by a plurality of separators which serve to circulate a cooling medium over the disc as it rotates. As shown in Fig. 1, pairs of brake discs 12, 13 and 14, 15, which rotate with the shaft 16 to be braked but are slidable longitudinally thereof, are provided with separators or fins 20 which circulate air between the discs as the latter rotate. The discs are adapted to co-operate, to brake the shaft, with a disc 19 and the armature 17 cf an electromagnet 10, which are held against rotation by a bolt 18, but are slidable longitudinally of the shaft 16. When the electromagnet ie energized, the armature is moved to the left against the action of the spring 11 and the dises are eased to the left to permis the shaft to run freely, whilst, when the electromagnet is de-energized, the spring 11 moves the armature 17 to the right to bring the rotary and fixed disc into engagement to brake the shaft. Specification 232,063 is referred to.
Patent GB-802843-A (GB)
Title: Polymers
IPC: C08F8/34
Filed: 1956-07-23
Abstract: Normally solid, high-molecular weight, copolymers of at least two terminally unsaturated aliphatic mono-olefines, containing not more than 6 carbon atoms, each mono-olefine being present as a component of the copolymer in an amount not greater than 60 mol. per cent, are chloro-sulphonated by adding chlorine and sulphur dioxide to a solution in an inert solvent in the presence of a free-radical catalyst.  The copolymers are prepared using a co-ordination catalyst comprising a polyvalent metal compound (preferably halides or esters) of metals selected from Ti, Zr, Ce, V, Nb, Ta, Cr, Mo or W with at least in part, a valence state below 3 or in the presence of a reducing agent such as lithium aluminium alkyl, capable of reducing the valence state, at least in part to less than 3.  The temperature of reaction is allowed to rise spontaneously to 50 DEG  or 60 DEG C., and the monomers added simultaneously to the catalyst solution over a period.  In an example a catalyst prepared by heating lithium aluminium hydride with decene-1 in the absence of water and oxygen is cooled and reacted with titanium tetrachloride in benzene to give a blank precipitate, which is used to copolymerize ethylene, propylene and butene-1, at 50 DEG  C., the polymer being isolated by precipitating from the benzene solution with methanol containing hydrogen chloride.  Other copolymers may be ethylene with propylene, butene-1, or hexene-1, and propylene with butene-1. Chlorine and a mixture of chlorine and sulphur dioxide is added to a carbon tetrachloride solution of the polymer in the presence of a free radical catalyst such as a ,a 1-azodiisobutyronitrile and the chloro-sulphonated products containing from 5 to 35 per cent chlorine and from 0.5 to 3.0 per cent of sulphur are isolated by steam-distillation or by evaporation on a drum drier to give a film. Stabilizers such as the condensation products of epichlorhydrin with diphenols such as propane 2,2-bisphenol may be incorporated together with the usual compounding agents, e.g. litharge, carbon black, disproportionated rosin, and a mixture of dipentamethylene thiuram tetra-sulphide and mercaptobenzothiazole and the products may be cured with metal oxides or weak acid salts of divalent metals such as lead and magnesium, or benzidine or rubber vulcanization accelerators.  The products are particularly resistant to oxygen, ozone, heat and light and may be formed as films or moulded or extruded as jacketing for wire and cable, rolls and tank linings. Specification 591,058 is referred to.
Patent GB-185018-A (GB)
Title: An improved shower bath appliance
IPC: A47K3/20
Filed: 1921-08-27
Abstract: 185,018. Gibb, H. R. Aug. 27, 1921. Clamps.-A shower attachment is secured to a bath by a pair of clamping-devices carried by the bar 1. Each clamp comprises a spindle 7 fitted with a rubber end-piece 9 held on to a plate 12 by a nut 13 and spindle 11, a button 16 on the end of the spindle being held between a socket 14 and a sleeve a on the plate.
Patent GB-750016-A (GB)
Title: Suspension polymerisation
Inventor: HUTCHINSON HENRY MALCOLM
IPC: C08F2/18
Filed: 1953-08-19
Abstract: In the aqueous suspension polymerization of monomers such as styrene, o- or p-chlorostyrene, dichlorostyrene, methyl, ethyl, propyl or butyl styrene, divinyl benzene, butadiene, methyl methacrylate, ethyl acrylate, acrylonitrile, vinylidene chloride and mixtures, finely divided magnesium hydroxide is used as stabilizer in the presence of additional alkali, e.g. sodium, potassium and calcium hydroxides.  A catalyst such as benzoyl peroxide may be used and the mixture may also contain small amounts, e.g. up to 10 per cent of the stabilizer, of a surface active agent such as the salts of organic sulphates and sulphonates, e.g. sodium octadecyl sulphate, alkali sulphite addition products of neutral esters of unsaturated polycarboxylic acids, alkyl aromatic sulphonates and aryl alkyl polyether sulphates, e.g. sulphonates of condensation products of ethylene oxide and alkyl phenols.  Excess stabilizer may be removed from the polymer beads by washing with acid, e.g. sulphuric acid.
Patent GB-1287542-A (GB)
Title: Improvements in or relating to electronic watches
IPC: G04G5/00
Filed: 1971-04-19
Abstract: 1287542 Electronic watches SUWA SEIKOSHA K K 19 April 1971 [2 March 1970] 22823/71 Heading G3T In an battery powered electronic watch the h.f. output signal of an oscillator 11 Fig.2 is amplified and converted by phase inverters 15, 16 into two signals in anti-phase which are fed into the 1st stage of a known frequency divider comprising a plurality of MOS flip-flop circuits 17 in cascade. The divider output is fed to a driver circuit 14 where it is amplified and shaped into suitable rectangular wave form for driving an electro-mechanical transducer 18 coupled to the time indicator of the watch. The oscillator and f. divider are permanently connected to the battery 10 and in order to conserve power when the watch is in store, a reset control 25 in the form of a switch, is operated whereby to connect inverter 15 circuit and all the flip-flop circuits to earth. Thereby the inverter 15 is disabled and the divider chain is zeroized whereupon the current taken by the divider chain becomes negligible. This arrangement also ensures that when the reset control switch disconnects the earth connections, an output will appear substantially instantaneously from the divider and therefore the watch can be restarted accurately in accord with a time signal, there being no time lag compared with known arrangements, as illustrated in Fig. 1 (not shown), wherein a switch disconnects all but the oscillator from the battery during storage of the watch.
Patent GB-720283-A (GB)
Title: Remote control mechanism
IPC: G05D3/14
Filed: 1951-10-02
Abstract: 720,283. Electric control systems. GARRETT CORPORATION. Oct. 2, 1951 [Oct. 9, 1950], No. 22898/51. Class 40 (1) The invention relates to remote control systems of the automatically balanced bridge type wherein movement of a control member 12, Fig. 2, upsets the balance of an A.C. Wheatstone bridge a-b-a<SP>1</SP>-b<SP>1</SP> the output of which is rectified in a phase sensitive triode amplifier 28-40 and fed through one of relays 37, 38 to the appropriate field 41, 42 of the load motor 15 which adjusts the potentiometer arm 21 in the corrective sense, i.e. until bridge balance is restored. To render the bridge inoperative on the occurrence of certain faults in the system, the primary bridge is modified by the addition of further resistors 43, 44, Fig. 4, to form a secondary bridge in which the potentiometers a-b, a<SP>1</SP>-b<SP>1</SP> function as invariable resistors. The output of this secondary bridge, taken from the transformer 47, is zero during normal operation of the primary bridge, but in the event of an open circuit other than in conductors 23, 24" or of grounded conductors the secondary bridge is unbalanced and its output rectified at 53 to apply a negative voltage to the grids of triodes 28, 29 to render them non-conductive and hence disable the motor 15. Protection against an open circuit in conductors 23, 24" is provided by a D.C. source 55 connected through high impedances 56, 57 to apply a negative voltage to the triode grids. Normally this high impedance circuit is shunted by the relatively low impedance of the primary bridge circuit, so that the voltage applied to the grids by the source 55 is innocuous. In the event of a break in conductors 23, 24", however, this voltage rises sufficiently to cut off the tubes. In a modified arrangement, Fig. 3 (not shown), the output of the primary, bridge across conductors 23, 24 is applied to the cathodes of the tubes 28, 29.
Patent GB-738115-A (GB)
Title: Mounting of electrodes in electric discharge devices
Inventor: SMYTH JOHN ARUNDEL
IPC: H01J19/42
Filed: 1953-08-20
Abstract: 738,115. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Aug. 20, 1953, No. 22947/53. Class 39 (1). An electrode is mounted by passing a lug such as 1, Fig. 2, through insulating spacer 6 and bending it down by means of a tool 15 which is guided so that it moves in a plane parallel to the surface of the spacer. The tool may be square-ended as shown and bear against the flat surface of the lug or it may be chamfered as 12, 13, Fig. 3, and bear against the edge. In Fig. 3 there are shown, in addition, toothed levers 30, 31 which temporarily locate the electrode supports while the spacer 20 is dropped over them, and strips 36, 37 which bear against the lugs 26 ... 29 underneath the spacer and take the strain from the electrodes as the tools 12, 13 bear on the lugs.
Patent GB-305551-A (GB)
Title: Drawers for bedsteads
IPC: A47C17/86
Filed: 1927-09-01
Abstract: 305,551. Ellingham, H. A. Sept. 1, 1927. Bedsteads combined with drawers. - The drawer or drawers which may have closed or open bottoms are divided into partitions by bars g having projections k on their upper ends which slide on runners a secured at their ends to cross bars b adapted to be secured to the bed or cot by straps c or the like.
Patent GB-1222549-A (GB)
Title: Display pack and blank therefor
Inventor: BYRNE WILLIAM ALFRED
IPC: B65D5/50
Filed: 1968-05-15
Abstract: 1,222,549. Cartons. MARDON, SON & HALL Ltd. 8 April, 1969 [15 May, 1968], No. 22988/68. Heading B8P. A carton formed from the blank shown in Fig. 1 comprises two pairs of opposed side walls 10, 12 and 11, 13 each side carrying self-erecting end flaps 16-23, and a flap 24 on side wall 10 is glued to side wall 13 to form a tubular carton. Corner portions 35-38 are secured to adjacent end flaps by adhesive so that the end flaps fold into an article receiving position as the carton is erected from flat to tubular form. During erection, tabs 26-29 slid down and engage V- shaped slots 30-33 in adjacent end flaps. When erected the end flaps form a frustoconical frame at each end of the caton and may support a chocolate egg.
Patent GB-1114502-A (GB)
Title: Circuits for generating gain control voltages in television receivers
IPC: H04N5/53
Filed: 1965-05-31
Abstract: 1,114,502. Automatic gain control. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 31 May, 1965 [30 May, 1964], No. 23010/65. Headings H3Q and H3T. In a television automatic gain control circuit a normally non-conducting valve or transistor is fed with the video signal and also with further pulses synchronous with the sync. pulses in the video signal but of opposite polarity, being in a direction tending to make the valve conductive and having an amplitude such that they extend from the sync. pulses beyond the opposite peaks of the video signal as it is applied to the valve so that the peaks of the further pulses render the valve conductive to generate the control voltage. Video signals, in which the sync. pulses are positive-going and the picture negative, are applied from the anode of video amplifier 2 to the base of transistor gate 6, via a potentiometer comprising resistors 3, 4 and a diode 5 whose purpose is to remove the picture components of the signals. Line flyback pulses are fed via a differentiating circuit comprising capacitor 8 and resistors 9, 10 to both terminals of the diode 5 so that the transistor gate 6 is driven conductive by the negative components of the differentiated pulses, superimposed upon the positive going incoming sync. pulses, whereby that the overall amplitude depends upon the sync. pulse height. The resulting pulses of collector current are smoothed by capacitor C1 and applied to the base of transistor 17 in an I.F. stage of the receiver. The arrangement is such as to prevent paralysis of the receiver occurring due to overload, before the line scan circuits have warmed up. In a modification (Fig. 2, not shown) the differentiated gating pulses are derived from a sync. separator valve instead, and the diode 5 can be omitted, since lack of synchronism cannot occur. In a further circuit (Fig. 3, not shown) a thermionic valve is used as a gate, the A.G.C. voltage being derived from a resistor in its cathode circuit; the grid is driven directly from an A.G.C. diode rectifier coupled to a separate winding on the last I.F. transformer, the load circuit of this diode being modified so as to separate the picture components.
Patent GB-1194514-A (GB)
Title: Improvements in or relating to Braking Systems
IPC: G01F23/56
Filed: 1968-05-15
Abstract: 1,194,514. Hydraulic brakes; indicating loss of hydraulic fluid. ALFRED TEVES G.m.b.H. 15 May, 1968 [20 Sept., 1967], No. 23052/68. Headings F2E and F2F. A make-up reservoir for a dual circuit brake system is divided into two chambers A, B by a partition 2 and a common float 3 is provided in a neck C above the partition to actuate a warning device if the level of liquid in the reservoir drops below a given level above the top of the partition. As shown, a contact plate 5 carried by a pin 4 on the float 3 co-operates with contacts 6 of an electric circuit.
Patent GB-490100-A (GB)
Title: Improved iron alloy for the production of rolls
IPC: C22C37/10
Filed: 1937-08-23
Abstract: The alloy described in the parent Specification is modified by the inclusion of one or more of the elements: copper, nickel, tungsten, molybdenum, cobalt, vanadium and titanium.  When present, the copper and nickel content amounts to 0,001-0,3 per cent, and the tungsten, molybdenum, cobalt, vanadium, and titanium content to 0,001-0,1 per cent.  The copper, nickel, and cobalt replace like quantities of iron and the other elements replace like quantities of iron or chromium or both.
Patent GB-757509-A (GB)
Title: Improvements relating to games of chance
Inventor: BARBER KENNETH BRADFIELD
IPC: A63F9/04
Filed: 1953-08-21
Abstract: 757,509. Chance apparatus. ARIEL PRODUCTIONS, Ltd. Aug. 12, 1954 [Aug. 21, 1953], No. 23121/53. Class 132(2) The results of imaginary football matches are decided by casting dice which have different potentialities of winning depending on whether they represent " home " or " away " teams and first, second or third divisions. As shown in Fig. 3, there are six dice, two for each division and they bear different series , of numerals and are distinguished by colour. " Home " and " away " dice are distinguished by the colour of the numerals. The players may have cards representing teams and may buy and sell by imitation money tokens which enhance the scoring power of the dice. A board may be provided having stacking areas for the cards and tokens.
Patent GB-849305-A (GB)
Title: Electrical resistance element and method of making same
Inventor: SR THOMAS M PLACE
IPC: H01B1/00
Filed: 1957-07-22
Abstract: 849,305. Resistive coatings; direct connections between conductors. BECKMAN INSTRUMENTS Inc. July 22, 1957, No. 23149/57. Classes 37 and 38(1) [Also in Group XXIII] A resistance element comprises a hightemperature resistant, non- conductive base carrying a fixed resistive coating of 1 to 16 % finely divided noble metal and 84 to 99 % glass having a melting point lower than the metal. As described, the resistive coating 10 is applied to a specified ceramic base 11 by brushing, spraying, stencilling or silk screening a mixture of a specified powdered glass, one or more noble metals and a carrier such as toluol, xyloy, oil, clear lacquer, isopropyl alcohol or water. A flux such as oxide of bismuth, molybdenum or vanadium may be included. The contact resistance may be reduced by adding an opacifier such as oxide of tin, antimony, molybdenum, chromium or zirconium. The resistor is then fired at specified temperatures to provide a finished glossy black coating preferably from 0-127 to 0À076 mm. thick. The noble metals specified, gold, silver, platinum, rhodium, palladium or iridium may be added in powder form or as soluble compounds such as resinates or abietates, dissolved in an essential oil. The oxidizable metals referred to above may also be introduced as soluble compounds. In this case, batches of material may be stored indefinitely if the mixture is heated slowly to 370 ‹C. before being ground and calcined at 475 ‹C. The resulting calcine is ground to produce 325 mesh particles each coated with a thin layer of metal and metal oxide particles. The element shown may be provided with a rotary contact for use as a potentiometer. A fixed resistor comprising a hollow tube 20 is also described. Other embodiments described are a button resistor and an element for a reciprocating potentiometer. Direct connections between conductors. Terminals 12, 23, are applied by firing silver paint. Alternatively terminal wires or ribbons may be placed in openings in the base 11 prior to firing on the layer 10 so that the wire or ribbon will project into the layer 10 and be adhered thereto during the firing process.
Patent GB-952589-A (GB)
Title: Improvements in or relating to pallets
Inventor: TRUSCOTT ARTHUR REGINALD
IPC: A47B81/00
Filed: 1959-07-06
Abstract: 952,589. Drawers. M. G. K. ENGINEERING CO. Ltd. July 6, 1960 [July 6, 1959], No. 23153/59. Heading A4B. [Also in Division B8] Drawers 22 are supported in a stacking openwork pallet (see Division B8) by inwardly facing channel members 18 with flanges of unequal length. Tangs 21 are bent down out of the lower flanges 19 to engage the upper edge of the rear of a drawer which is pulled out so that it hangs at an angle to the channels. Two drawers may fit into each set of guides, f o r withdrawal from opposite sides.
Patent GB-174965-A (GB)
Title: Process for volatilizing and decomposing hydrocarbons
Filed: 1920-08-09
Abstract: 174,965. Stephens, A. J., (Canadian- American Finance & Trading Co., Ltd.). Aug. 9, 1920. Filtering.-In a process for decomposing hydrocarbons by mixing with a heating fluid, deposited coke is separated from the hydrocarbon vapour by filtering through a porous partition. The mixture of hydrocarbon and heating fluid is allowed to expand into one of two chambers 24, 24<1>, separated by a partition 24<x> of wire gauze, silica, silica-sand, corundum, alumina, &c., and passes. into the other chamber whence it escapes. Coke &c. are removed through one of two openings 27<1>, 27" controlled by water-cooled valves 27<a>, 27<b>. When the partition 24<x> is clogged the vapours are sent through it in the reverse direction.
Patent GB-233826-A (GB)
Abstract: 233,826. Mumford, E. M., and Butterworth, T. S. March 15, 1924. Waterproofing; proofing processes and compositions.-An aqueous acid, alkali or salt solution capable of precipitating the tar, pitch, or like hydrocarbon out of the liquor in which it is dispersed, suspended, or emulsified is applied to the road or other surface on which the tar &c. is to be spread, before or immediately after the application of the dispersion thereto in order to expedite the deposition of the tar &c. A suitable solution is given as 10 parts of sodium hydrogen sulphate, 5 parts of sulphuric acid, and 85 parts of water.